Process for producing carbon fibers

Details Process for producing carbon fibers Process for producing carbon fibers

1976-04-01

1978-02-14

Vertiz, O. R.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

4234477, 4234478, D01F 912

Patent

active

040738701

ABSTRACT:
A process for producing carbon fibers which comprises feeding an inert gas into a vertical furnace at about 500 to about 1,000.degree. C. and into a transverse furnace at about 800 to about 2,000.degree. C. connected thereto so that the inert gas flows from the transverse furnace toward the bottom of the vertical furnace and then to the top of the vertical furnace, and feeding preoxidized fibers from the top of the vertical furnace to pass the fibers countercurrent to the inert gas flow through the two furnaces to thereby carbonize the fibers. Apparatus of the type shown in the drawing for the production of carbon fibers by the above process. Carbon fibers having good performance can be produced with good efficiency.

REFERENCES:
patent: 3607672 (1971-09-01), Schmitt
patent: 3656904 (1972-04-01), Ram
patent: 3673035 (1969-04-01), Whitney
patent: 3772429 (1973-11-01), Basche et al.

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